An application of image processing in flat panels

Author

Yuchung Huang ; Chiahsiang Wu ; Chih-Yuan Chang

Author_Institution

Dept. of the Electr. Eng., Tunghai Univ., Taichung, Taiwan

fYear

2012

fDate

17-19 Dec. 2012

Firstpage

8

Lastpage

11

Abstract

An image processing system has been designed, implemented and experimented for use in the Liquid Crystal Display fabrication. To improve the efficiency of throughput while LCDs conveyed in the fabrication process, an automatic system of the alignment and the dispensing detection are undertaken using image capture on an XY table. An explanation on the configuration of optics and the panel orientation correction are introduced. A cross marked key for alignment is captured by a CCD camera which provides us the coordinates and the orientation of the LCD. Implementations of the algorithm of the binarization, the edge detection and the thinning/skeletonization are executed in the Visual Basic language. The dispensing performance is investigated by calculation the dege width of the gluing material on the panels. The experimentation reveals us a satisfactory result and a user-friendly interface to personal computers.

Keywords

CCD image sensors; Visual BASIC; computer interfaces; computerised instrumentation; edge detection; flat panel displays; liquid crystal displays; CCD camera; LCD fabrication; Visual Basic language; XY table; edge detection; flat panels; image capture; image processing system; liquid crystal display fabrication; panel orientation correction; personal computers; thinning-skeletonization; user-friendly interface; Abstracts; Image resolution; Image process; LCD; panel;

fLanguage

English

Publisher

ieee

Conference_Titel

Wavelet Active Media Technology and Information Processing (ICWAMTIP), 2012 International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4673-1684-2

Type

conf

DOI

10.1109/ICWAMTIP.2012.6413427

Filename

6413427